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Delx Commerce — Disposable Domain Heuristic
x402
Delx Commerce — Disposable Domain Heuristic is a paid API for AI agents from commerce.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-01).
Checks whether a given domain name is a disposable/temporary email provider using heuristic detection
Price / call$0.001
Success—
StatusUnknown
How this service works
Pay-per-result APIs for agents. No signup. Exact price. Verifiable delivery. USDC on Base + Solana via x402.
Output
Returns a JSON object containing the queried domain, a schema identifier ('delx/util-disposable-domain-heuristic/v1'), and a boolean 'is_disposable' field indicating whether the domain is classified as a disposable/temporary email provider.
Example use cases
Block throwaway emails at signup
“A new user just tried to register with an address at guerrillamail.com — can you check if that's a disposable email domain so I can decide whether to block the signup?”
Screen bulk user email domains
“I have a list of email domains from recent signups, starting with yopmail.com — can you tell me if that domain is a known disposable or temporary email provider?”
Fraud check before sending promo codes
“Before I send a promo code to someone who signed up with a 10minutemail.com address, can you verify whether that's a throwaway email domain?”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/disposable-domain-heuristic?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a lightweight, pay-per-call disposable email domain check with no signup required and verifiable on-chain payment via x402. Prefer it over free open-source lists when you need a maintained heuristic service and want agent-native micropayment integration. At $0.001 USDC per call it is cost-effective for both high-volume screening and one-off checks.
Side effects
- Missing or empty 'domain' field returns a validation error
- Unrecognized or very new disposable domains may return false negatives (is_disposable: false) if not yet in heuristic database
- Legitimate domains misidentified as disposable (false positives) may occur for obscure mail providers
- Payment failure via x402 results in 402 response before heuristic is run
- Malformed domain strings (e.g. with spaces or invalid TLDs) may produce unexpected results
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| domain | string | Domain name |
Output
Schema · Response
{
"type": "json",
"example": {
"domain": "mailinator.com",
"schema": "delx/util-disposable-domain-heuristic/v1",
"is_disposable": true
}
}Tags
x402
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